How do you get grease out of leather?

I am getting worried that my kids don't need me, even the little ones. A quality that I love about my children is that they are "do it yourselfer's" if they want or need something they don't hang around for help.

 I'd say 90% of the time they are very good about asking permission, but once I have uttered a child's magic word, "Yes" they are gone. There is no chancing that I might realize what they have asked and change my mind. 

For example, Storie asked me yesterday if she could have some peanut butter. I said "yes" thinking as soon as I am done checking my email I will get her some. Apparently that was not in her time frame. Ten minutes later this is what I found...

Rush apparently wanted some peanut better also. I thought it was nice Storie shared with him don't you?
I was thinking Storie wanted a sandwich or apples slices with peanut butter, but now I know when she asks for peanut butter, I can just hand her a spoon and the jar!